Identification and Positioning based on Motion Sensors and a Video Camera

Keywords

Abstract

In recent years, many papers have demonstrated "ubiqui
tous" services for indoor human location. Under the con
ventional method of position detection, the major approach
is to generate electromagnetic waves or light rays as in Ac
tive Badge or RFID tags. However, in the case of practical
applications for infant education, parents are wary of meth
ods that employ radiated electromagnetic waves. In this
article we propose a high-precision positioning system for
children in a room, using only a combination of image data
and passive motion sensors. We evaluate some alternative
implementations experimentally. These evaluations probe
whether the combination of a pedometer approach to ana
lyze motion sensor data and moving-object detection from
video camera images is the best combination with respect
to ease of operation and accuracy. The proposed method
cannot yet analyze data in real time. It may, however, be
possible to apply the technique to various fields with little
need for expansion, based on location information.